Bur oak may have terminal buds that include small hairs and resemble bear claws. The fruit of the bur oak is an acorn with a large cap that features a hairy fringe forming a burr along the outside ...
Bur Oak is the state tree of Iowa ... The flowers are greenish-yellow catkins, produced in the spring. The acorns are very large, 2-5 cm (0.8-2 in) long and 2-4 cm (0.8-1.5 in) broad, with ...